Audio tracks pitch has changed with no pitch shift effect applied. How could I fix this?

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Level 1

8 points

Audio tracks pitch has changed with no pitch shift effect applied. How could I fix this?

I opened a voice over project to discover that all of the recorded voices were deeper, it's as if the pitch bend effect has lowered the pitch by 2 semitones, even though there is no pitch shift effect on the audio track.

I can't help think that it's a major glitch or I have clicked something by mistake. The project was complete and ready to be bounced, and now i'm scratching my head completely puzzled trying to figure out how to fix it. I have tried removing the list of actions in undo history but that didn't solve the pitch glitch.

Any help or advice would be highly appreciated.

Thank you.

Logic Pro X, OS X Yosemite (10.10.5)

Posted on Apr 19, 2016 6:14 PM

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Answer 1

Flint_6

Level 1

20 points

Apr 25, 2016 1:16 AM in response to Murgatoib

I'm not sure I follow completely. You recorded some voice-over and it sounds fine, but when you EXPORT it, it sounds lower? Or does it sound lower in the Logic session already?

The only reason I can think of for such a behaviour is a sample rate mismatch. It happened to me once that I opened another software, that set the sample rate to 48kHz, but my Logic session was 44.1kHz. And Logic got confused. Recorded everything with 48kHz while thinking it was 44.1kHz. Then, playing the 48 thousand samples per second with a speed of 44 thousand samples per second is the same effect as playing a tape slower, slowing it down. It makes audio a little slower and the pitch goes down. Like slowly decresing the speed of a vinyl record. Maybe that's the case. At this point, I'm not sure what to do. I had this problem but I don't remember how I fixed it. I think I tried changing the metadata of the file and overwrite where it says "i'm a 44.1kHz file" with "no, I'm actually a 48kHz" file. I think I used Apple's "Compressor" to do it if I'm not mistaken, but I couldn't tell, it's long while back.

Or, if everything sounds good in Logic and just the exported audio sounds weird, then maybe the software you're playing it with, somehow has the wrong sample rate set and plays the 48kHz recording with 44.1kHz, resulting in the same effect.

Hope I helped a bit.

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Answer 2

Murgatoib Author

Level 1

8 points

Apr 25, 2016 1:37 AM in response to Flint_6

Hi again, so I chose file>project settings>audio, my sample rate was set to 44.1 kHz, i changed it to 48kHz and now the audio seems to be back to normal.

such a relief, means i don't have to re-record an entire project. your help is very much appreciated!

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Answer 3

Murgatoib Author

Level 1

8 points

Apr 25, 2016 1:16 AM in response to Flint_6

Hi Flint, thank you for your reply.

The audio sounds lower/slower within the logic project.

Sorry, I could have made it more clear, I had imported a video into logic so that i could record a voice over to sync up with the talking.

I've been using logic pro x for 2 years and never had to mess around with sample rate settings, at this stage i'm not sure how to go about modifying the sample rate, I shall look into changing it although it would be simply guessing. Your answer does make sense though, i'll get back to you with my results.

thanks again 😀

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Answer 4

Flint_6

Level 1

20 points

Apr 25, 2016 5:29 AM in response to Murgatoib

Glad I could help 🙂 Have fun!

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